نتایج جستجو برای: dunaliella tertiolecta

تعداد نتایج: 1044  

Journal: :Planta medica 1988
J Fabregas C Herrero M Parafita J M Paz B Cabezas J Abalde

The dried marine microalga Dunaliella tertiolecta was fed to weaning albino rats for 12 days as the sole protein source at a protein level of 12% protein from casein. Plasma cholesterol, triglycerides, and CPK levels were significantly lower in animals given the microalgal diet than in the control group with values 19.12 %, 45.80%, and 43.90% lower, respectively. These results suggest that the ...

Journal: :Biotechnology and bioengineering 2004
Maria J Barbosa Hadiyanto René H Wijffels

In the present work we identified and quantified the effect of hydrodynamic stress on two different microalgae strains, Dunaliella tertiolecta and D. salina, cultivated in bench-scale bubble columns. The cell death rate constant increased with increasing gas-entrance velocity at the sparger. Dunaliella salina was slightly more sensitive than D. tertiolecta. The critical gas-entrance velocities ...

2003
J. Beardall

Acclimation to very low photon fluxes involves adjusting a suite of physiological characteristics that collectively elicit a physiological response. Facilitating such changes is protein turnover. Dunaliella tertiolecta (Butcher) and Phaeodactylum tricornutum (Bohlin) were grown in turbidostats at a range of photon fluxes between 2 and 300 m mol photons m 2 s 1 . The kinetics of pulse-chase labe...

Journal: :The American naturalist 2009
J R Seymour Marcos R Stocker

Exploitation of microscale (microm-mm) resource patches by planktonic microorganisms may influence oceanic trophodynamics and nutrient cycling. However, examinations of microbial behavior within patchy microhabitats have been precluded by methodological limitations. We developed a microfluidic device to generate microscale resource patches at environmentally realistic spatiotemporal scales, and...

Journal: :journal of agricultural science and technology 2012
n. hosseinzadeh gharajeh m. a. hejazi s. nazeri abolfazl barzegari

dunaliella is a green halotolerant microalga, which has several industrial applications e.g. β-carotene production. identification of different dunaliella species has been carried out by morpho-physiological and recently molecular studies. to achieve an improved understanding of taxonomy, these studies are required to be in linkage. the present study describes molecular and specific morpho-phys...

Journal: :Bioresource technology 2013
Bon Geun Goo Gu Baek Doo Jin Choi Yong Il Park Andriy Synytsya Roman Bleha Dong Ho Seong Choul-Gyun Lee Jae Kweon Park

Extracellular polysaccharide (EPS) was isolated from defatted micro-algae Dunaliela tertiolecta and defined as linear (1→4)-α-D-glucan based on monosaccharide composition, enzymatic and spectroscopic analyses. Optimization and characterization of acidic and enzymatic hydrolyses of EPS have been performed for its potential use as a renewable biorefinery material. The hydrolytic methods were impr...

افسانه طاعی رامین مناف‌فر, رضا ملک‌زاده سمیه قربانی,

جلبک Dunaliella جنس چیره تک‌سلولی یوکاریوت دریاچه ارومیه است که در سال‌های اخیر به علت خشکسالی شدید دریاچه ارومیه تراکم جمعیت آن به شدت کاهش یافته است. در پژوهش حاضر، تنوع گونه‌های مختلف این جنس با روش مولکولی در تعدادی از ایستگاه‌های دریاچه ارومیه بررسی شد. کولی با انجام واکنش زنجیره‌ای پلیمراز (PCR) و استفاده از جفت پرایمر ژن 18srDNA، گونه‌های مختلف این جنس شناسایی شد. نمونه‌برداری و جداسازی ...

Journal: :Applied and environmental microbiology 1978
R D Sjoblad I Chet R Mitchell

A quantitative capillary assay is described for measuring chemoreception in the neritic and littoral unicellular alga Dunaliella tertiolecta. Lucite chemotaxis plates were used in the assay with 3-microliter capillaries. A Coulter Counter was employed to determine algal cell numbers. D. tertiolecta is attracted to ammonium ion with a maximum positive response at 10(-3) M. Inclusion of calcium a...

2016
Jim Junhui Huang Gagarin Bunjamin Edwin Sianguan Teo Deric Boonhuat Ng Yuan Kun Lee

BACKGROUND The design of photobioreactor (PBR) for outdoor mass cultivation of microalgae determines the distribution of solar irradiance among cells in the culture, mode of agitation, mass transfer efficacy, and energy consumption, thus determines the productivity of the system and the cost of production. In this study, the concept of a floating photobioreactor with rotation function is propos...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید